Additional Macro Icons (very minor, but hopefully very easy to implement!)

At the moment there are macro icons which are nice enough. I was just wondering if it would be possible to have a set of icons for the non-battle classes, such as botanist, alchemist, etc? There are already icons for each of the battle classes.

Obviously this is very, very far from a major issue and I've made do with the various other icons, but it would be nice to have something obvious for each of them. :) I'm hoping it's an easy thing to do!